Search a number
-
+
10087440 = 2435113821
BaseRepresentation
bin100110011110…
…110000010000
3200222111100220
4212132300100
510040244230
61000113040
7151512306
oct46366020
920874326
1010087440
11576a930
123465780
1321225cc
1414a8276
15d43d10
hex99ec10

10087440 has 80 divisors (see below), whose sum is σ = 34122816. Its totient is φ = 2444800.

The previous prime is 10087411. The next prime is 10087459. The reversal of 10087440 is 4478001.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 10087440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 730 + ... + 4550.

Almost surely, 210087440 is an apocalyptic number.

10087440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10087440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17061408).

10087440 is an abundant number, since it is smaller than the sum of its proper divisors (24035376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10087440 is a wasteful number, since it uses less digits than its factorization.

10087440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848 (or 3842 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 10087440 is about 3176.0730470189. The cubic root of 10087440 is about 216.0695934873.

It can be divided in two parts, 1008 and 7440, that added together give a palindrome (8448).

The spelling of 10087440 in words is "ten million, eighty-seven thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 132 165 176 220 240 264 330 440 528 660 880 1320 2640 3821 7642 11463 15284 19105 22926 30568 38210 42031 45852 57315 61136 76420 84062 91704 114630 126093 152840 168124 183408 210155 229260 252186 305680 336248 420310 458520 504372 630465 672496 840620 917040 1008744 1260930 1681240 2017488 2521860 3362480 5043720 10087440